Two-magnon scattering and viscous Gilbert damping in ultrathin ferromagnets

被引：208

作者：

Lenz, K

Wende, H

Kuch, W

Baberschke, K

Nagy, K

Jánossy, A

机构：

[1] Free Univ Berlin, Inst Expt Phys, D-14195 Berlin, Germany

[2] Budapest Univ Technol & Econ, Inst Phys, Solids Magnet Fields Res Grp, Hungarian Acad Sci, H-1521 Budapest, Hungary

来源：

PHYSICAL REVIEW B | 2006年 / 73卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.73.144424

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ferromagnetic resonance experiments of magnetic nanostructures over a large frequency range from 1 to 225 GHz are presented. We find unambiguous evidence for a nonlinear frequency dependence of the linewidth. The viscous Gilbert damping and two-magnon scattering are clearly separated. Both angular and frequency dependent measurements give a transverse scattering rate within the magnetic subsystem of the order of 10(9) s(-1), whereas the longitudinal Gilbert relaxation into the thermal bath is one to two orders of magnitude smaller.

引用

页数：6

共 27 条

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